CD4021BQDRQ1

Product Overview

Category

CD4021BQDRQ1 belongs to the category of integrated circuits (ICs).

Use

It is commonly used as a shift register IC.

Characteristics

• Serial-in, parallel-out shift register
• 8-bit storage register with three-state outputs
• Wide operating voltage range: 3V to 18V
• Low power consumption
• High noise immunity
• Schmitt-triggered clock inputs for improved noise rejection
• Available in various package options

Package

CD4021BQDRQ1 is available in a standard SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of CD4021BQDRQ1 lies in its ability to convert serial data into parallel output. It can be cascaded to achieve larger shift registers.

Packaging/Quantity

CD4021BQDRQ1 is typically packaged in reels containing 2500 units.

Specifications

• Supply Voltage Range: 3V to 18V
• Input Voltage Range: 0V to VDD
• Output Voltage Range: 0V to VDD
• Operating Temperature Range: -40°C to +125°C
• Maximum Clock Frequency: 5 MHz
• Maximum Power Dissipation: 500 mW

Detailed Pin Configuration

CD4021BQDRQ1 has a total of 16 pins:

1. Serial Data Input (DS)
2. Clock Input (CP)
3. Parallel Data Outputs (Q0-Q7)
4. Clock Enable Input (CE)
5. Serial Data Output (Q7S)
6. Ground (GND)
7. Supply Voltage (VDD)

Functional Features

• Serial-to-parallel conversion
• Three-state outputs for easy interfacing with other devices
• Schmitt-triggered clock inputs for improved noise rejection
• Cascadable to achieve larger shift registers

Advantages and Disadvantages

Advantages

• Wide operating voltage range allows for versatile applications
• Low power consumption makes it suitable for battery-powered devices
• High noise immunity ensures reliable data transmission
• Schmitt-triggered clock inputs improve performance in noisy environments

Disadvantages

• Limited maximum clock frequency (5 MHz)
• Only 8-bit storage capacity

Working Principles

CD4021BQDRQ1 operates by shifting the serial data input (DS) into its internal shift register on each rising edge of the clock input (CP). The parallel data outputs (Q0-Q7) reflect the current state of the shift register. The clock enable input (CE) can be used to disable the clock, freezing the shift register's contents.

Detailed Application Field Plans

CD4021BQDRQ1 finds applications in various fields, including:

1. Data communication systems
2. Industrial automation
3. Automotive electronics
4. Consumer electronics
5. Robotics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to CD4021BQDRQ1 are:

1. SN74HC165N
2. CD74HC4094E
3. 74HC595D
4. CD4015BE
5. SN74LS164N

These models can be considered as alternatives based on their compatibility and features.

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